Abstract
The nonleptonic weak Hamiltonian strongly favours the annihilation and creation of correlated quark pairs in spin zero and colour antitriplet states. It is demonstrated that bothS- andP-wave nonleptonic hyperon decays are well described by this mechanism if supplemented by factorization contributions. Apart from the use of mass values and the π-nucleon coupling constant, the results are obtained in a parameter free way. Since the diquark properties applied are identical to the ones used in the calculation ofK→2π decays and the long range contribution to theK L −K S mass difference, a coherent physical picture of dominant nonperturbative effects in the low energy domain is reached.
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Supported in part by the Bundersministerium für Forschung und Technologie, Bonn, FRG
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Stech, B., Xu, Q.P. Hyperon decays and quark-quark correlations. Z. Phys. C - Particles and Fields 49, 491–499 (1991). https://doi.org/10.1007/BF01549703
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DOI: https://doi.org/10.1007/BF01549703